lesson 1-3
chemical weathering
the process that changes the composition of rocks and minerals due to exprosre to the enviroment.
molten rock stored beneath Earth's surface
magma
long , narrow mountains formed by magma at divergent boundaries
mid-ocean ridges
where two plates move toward each other
convergent boundary
the mechanical and chemical process that change Earth's surface over time
landslides occur at the top of a mountian and end at a valley .
where do landslides occur
the vibrations caused by the rupture and sudden movement of rocks along a break or a crack in Earth's crust
eathquake
a large mass of ice formed by snow accumulated on land that slowly moves across earth's surface.
glacier
vents in Earth's crust through which molten rock flows
volcanos
a boundary where two plates move away from eachother
divergent boundary
Becaise weathering causes sediment's to break down . Weathering can produce sediment of different sizes . Weathering creates sediment
How is weathering related to sediment ?
If mountains are too tall or slope or steep the force of gravity can create andslides . After that it can create large amount's of rocks and soil come crashing downhill.
what provides the force that can cause rocks to move downhill ?
rock matieral that forms when rocks are broken down into smaller pieces or disolved in water as rocks erode
are formed by blowing wind erosion can carry sand
how are ripples formed?
magma that erupts onto Earth's surface
lava
There will by no energy to move the soil or rocks
how does the energy affect the deposition of rocks on a hillside?
the layer down or setting of eroded matieral
deposition
the faster water flows , the larger pieces of sediment it can carry.
what kind of river could carry the most sediment?
large flowing rivers
what causes the most erosion on earth?
the moving of weathered material or sediment , from one location to another.
erosion
the downhill movenment of a large mass of rocks or soil due to gravity
mass wasting
Physical weathering is the process of breacking down ricks without changing the composition of the rock . Chemical weathering is the process that changes the composition of rocks.
What is the difference form Physical weathering and Chemical weathering?
the most important process that changes landform by erosion is
wind
two plates slides past each other
transform boundary
is the process that occurs when one tectonic plate moves under another tectonic plate
subduction